Map of places in Salt Lake County downloaded from Overture Maps.

Salt Lake County Places Dashboard

Dashboard
OJS
Overture Maps
GIS
Data Science

Interactive dashboard of Overture Maps places in Salt Lake County: filter by category and confidence, see where they cluster and which cities have the most.

Oct 2026
4 min
Scatter plot of bikeway miles against total road miles for Utah cities.

Utah Bikeways Dashboard

Dashboard
OJS
Transportation
GIS
Data Science

Interactive dashboard comparing bikeway miles with road miles for every Utah municipality, filterable by facility type.

Oct 2026
3 min
Utah Education Explorer map of public schools, private schools and colleges as clustered markers, with a layers panel and a year timeline.

An Education Explorer for Public NCES Data

JavaScript
Python
Data Science
Web Apps
Open Source
GIS

A static, map-first dashboard for publicly available NCES data (CCD, PSS, IPEDS) for one U.S. state at a time, powered by DuckDB-WASM.

Oct 2026
3 min
Freight Explorer dashboard for Utah with freight flow lines on a map, summary tonnage and value figures, and mode and direction charts.

A Zero-Cost Freight Flow Explorer for Utah

JavaScript
Python
Transportation
Web Apps
Open Source
GIS
Data Science

A map-first explorer for the public Freight Analysis Framework (FAF) data, built as a static site that queries Parquet files directly in the browser.

Oct 2026
4 min
UGRC Vector Map Tile Styles editor showing a dark Salt Lake City basemap and a layer list.

Restyling Utah’s Vector Basemap for MapLibre

JavaScript
Python
GIS
Open Source
Web Apps

Alternate MapLibre styles for UGRC’s Lite vector basemap, generated from live upstream sources, and a visual editor to tweak, compare and download them.

Sep 2026
4 min
Borderline game start screen with mode, difficulty, timing and round options and a Play button, in a dark theme.

Borderline: A U.S. Geography Guessing Game

JavaScript
Web Apps
Open Source
GIS

A browser geography game for U.S. states and counties, built as plain static HTML, CSS and JavaScript with no build step.

Sep 2026
2 min
Drut documentation page introducing the Cube Voyager script linter, formatter and editor tooling suite.

Drut: Linting and Formatting for Cube Voyager Scripts

Developer Tools
Travel Demand Modeling
Open Source
Transportation

Drut is a linter, formatter and editor tooling suite for Cube Voyager scripts (.s / .block), with a CLI, a language server for VS Code, and an MCP server.

Aug 2026
3 min
Map comparing GTFS transit lines and stops with travel demand model transit lines along the Wasatch Front.

GTFS vs. TDM Transit Network Comparison

WFRC
Transportation
Travel Demand Modeling
GIS
Web Apps

A web map for comparing the base-year transit network in the Wasatch Front travel demand model with GTFS transit data. Developed at the Wasatch Front Regional Council.

Jul 2026
2 min
Commute Flow Explorer map of the Wasatch Front with commute flow lines scaled by volume.

Commute Flow Explorer

WFRC
JavaScript
Transportation
Web Apps
GIS
Data Science

A client-side web app for exploring origin-destination commuter flows across the Wasatch Front using H3 cells and DuckDB-WASM. Developed at the Wasatch Front Regional Council.

Jun 2026
2 min
Map of a census tract outlined in dark blue with transit and land-use context.

Opportunity Zones 2.0 Tract Info Sheets

WFRC
R
GIS
Data Science

A Quarto and R pipeline that builds county summary and per-tract detail PDFs for Utah’s Opportunity Zones 2.0 eligible list. Developed at the Wasatch Front Regional Council.

May 2026
2 min
Utah Commuter Flow Patterns dashboard with a map of Salt Lake City inflow, top flow bars and a commute length chart.

Utah Commuter Flow Patterns

WFRC
JavaScript
Transportation
Web Apps
GIS
Data Science

An interactive, client-side map of commute flows across Utah, built on LEHD LODES data and open-source tools. Developed at the Wasatch Front Regional Council.

May 2026
2 min
Map of H3 hexagons on the Wasatch Front shaded by population and employment density, with a smoothed versus raw swipe divider.

SE 2025 Urban Form D Variables (H3)

WFRC
R
GIS
Web Apps
Transportation
Data Science

Calculates the D variables of urban form (density, diversity, design, destinations, demographics, distance to transit) for the Wasatch Front region at H3 resolution. Developed at the Wasatch Front Regional Council.

May 2026
2 min
Title slide: Initialization and Accessibility, an ActivitySim deep dive for travel demand modelers.

ActivitySim Initialization & Accessibility

Travel Demand Modeling
Transportation
Python

A deep dive for travel demand modelers on how ActivitySim loads data, validates inputs, and computes its first aggregate measure, accessibility.

Apr 2026
1 min
Parquet Explorer with a column list, a map of points, a data table and a schema panel for a Nodes.parquet file.

Building a Client-Side Geo/Parquet File Viewer

JavaScript
Data Science
Web Apps
Open Source
GIS

A browser-based viewer for GeoParquet and Parquet files with SQL and map views. It runs on WebAssembly, so the data stays on your computer.

Apr 2026
2 min
OMX Viewer showing a 3,629 by 3,629 trip matrix as a scrollable table with a file info side panel.

Building a Client-Side Open Matrix (OMX) File Viewer

JavaScript
Travel Demand Modeling
Web Apps
Open Source
Transportation
Data Science

A browser-based viewer for OMX matrix files from travel demand models. It runs on WebAssembly, so the data never leaves your computer.

Apr 2026
2 min
Title slide for Prompt Engineering Best Practices over a darkened photo of a humanoid robot reading.

Prompt Engineering Best Practices

AI
WFRC
Data Science

Slides on prompt engineering best practices for analytics and modeling work, presented in WFRC’s Tech, Skills, and Beyond series.

Apr 2026
15 min
Spatial Explorer landing page, 'Open a map file. Query it like a database.', with a SQL query over a hex-binned world map.

Spatial Explorer: Spatial SQL for Maps, in the Browser and in VS Code

JavaScript
GIS
Developer Tools
Web Apps
Open Source

Open a geospatial file, query it with spatial SQL, style it and export it without a desktop GIS. How the project grew from a single-page experiment into a web app and a VS Code extension.

Feb 2026
9 min
Cartoon contrasting CSV, which checks every box of mixed fruit, with Parquet, which opens only the box of apples.

Modernizing Spatial Workflows

R
Python
GIS
Data Science
WFRC

Benchmarks of DuckDB, SedonaDB and GeoParquet against sf and GeoPandas on Utah address and county data, in R and Python.

Feb 2026
11 min
WgetGUI Ultimate window with target URL and output fields and the generated wget command.

WgetGUI Ultimate: A Fluent Command Generator

Developer Tools
JavaScript
Web Apps
Open Source

A modern, Windows 11-inspired web interface for building complex GNU Wget commands

Jan 2026
2 min
Map of Nepal's electoral constituencies in grey with national parks highlighted in green.

Nepal Electoral Constituency GeoJSON

R
GIS
Data Science

Scraping a constituency map from an election results site, converting its SVG paths to GIS geometry, and georeferencing it against ward boundaries in R.

Jan 2026
7 min
Wasatch Front Housing Site Evaluator welcome dialog explaining how to select communities, filter by land use and set priorities.

Housing Site Evaluator

WFRC
R
Transportation
Web Apps
GIS
Data Science

Scores every parcel and H3 hexagon in the Wasatch Front region on access to jobs, transit and everyday necessities. Developed at the Wasatch Front Regional Council.

Dec 2025
2 min
Scatter plot of bikeway miles against total road miles for Utah cities, colored above and below the statewide average.

Analyzing the Utah Bikeways data

R
GIS
Transportation
Data Science

This analysis calculates and compares roadway lane miles and bikeway facility miles across Utah municipalities using spatial data from the Utah Geospatial Resource Center (UGRC).

Nov 2025
17 min
Globe view centered on Africa with an introduction card for a personal story map.

Building an Interactive Storymap using {mapgl}

R
Web Apps
GIS
Open Source

Creating an open-source, interactive storymap with the {mapgl} R package to visualize my journey across the world.

Sep 2025
6 min

Pukar Bhandari logo

Quantifying Economic Effects of Transportation Investments

Transportation
Data Science

Slides on methods and applications for quantifying the economic effects of transportation investments in regional planning.

Aug 2025
10 min
Map of six South Carolina counties in the Lower Savannah region divided into colored traffic analysis zones.

Base Year SE Data Development

R
Python
Data Science
Transportation
GIS
Travel Demand Modeling

Developing base-year socioeconomic data by traffic analysis zone for the Lower Savannah COG 2050 Long Range Transportation Plan, using R and Python.

Jul 2025
53 min
Population pyramid for Autauga County, Alabama, beside a tract-level map of Alabama.

Building an Interactive Population Pyramid Explorer

R
Data Science
Web Apps
GIS

A deep dive into creating a story-driven Shiny application that combines interactive mapping with demographic visualizations using Census data.

Jun 2025
5 min
RoboGUI Ultimate window with source and destination fields, quick presets and the generated robocopy command.

Interactive Robocopy GUI Tool

Developer Tools
JavaScript
Web Apps
Open Source

A web-based interface for generating Windows robocopy commands with ease

Jun 2025
2 min
 

pukRhelpers: A Personal Toolbox of R Helpers

R
GIS
Developer Tools
Open Source
Data Science

An R package collecting helper functions from my day-to-day data and GIS work. Maintained lightly.

May 2025
2 min
Interactive map of the Salt Lake City area covered with clustered purple points from Overture Maps data.

Overture Maps Data Download

R
Python
GIS
Data Science
Overture Maps

Downloading Overture Maps data for an area of interest with DuckDB, in both R and Python.

May 2024
8 min
Census Data Explorer with year, state and county filters, a map of Utah counties and a table of block group data.

Building a U.S. Census Data Explorer

R
Data Science
Web Apps
GIS
Transportation

Learn how to build an interactive Shiny dashboard for exploring U.S. Census data including ACS, Decennial Census, and LEHD datasets with integrated mapping capabilities.

May 2024
8 min
3D population density map of Nepal with tall orange columns marking Kathmandu and other cities.

3D Population Density Mapping of Nepal

R
GIS
Data Science

A 3D population density map of Nepal built in R with rayshader and Kontur population data.

Jan 2023
16 min
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